Mutation rates, Biology

Assignment Help:

Each gene has a characteristic mutation rate. Mutation rates are often described as an average per gene basis. For instance, Drosophila has one detectable mutation per 10,000 loci, that is, 0.01% per locus. In humans spontaneous mutation rates have been calculated for some of the dominant lethi1 genes such as retinablastoma, chondrodystrophy and Huntington's chorea. These genes have rates varying from 0.01% to 0.001% per locus which means that one out of 10,000 or 100,000 loci mutates. This is true of most of eukaryotic mutation rates which range from to per locus. Jn prokaryotes the rates may be much lower, ranging from 10-4 to 10-6 per locus. Mutations can also occur in reverse direction by which it is ineant that a mutant gene can mutate back to its wild type form. However, reverse or back mutation rates are much lower than the forward mutation rates.


Related Discussions:- Mutation rates

What is acute massive pulmonary embolism, what is Acute Massive Pulmonary E...

what is Acute Massive Pulmonary Embolism ? Acute Massive Pulmonary Embolism :  Before the era of open-heart surgery, Trendelenburg (1908) described technique of open p

Explain the function of cell walls, What is plant cell walls made of? ...

What is plant cell walls made of? Explain the function of cell walls? Plant cell walls are made of cellulose embedded in carbohydrates and proteins. Cell walls help su

How are bacteria are classified, Q. How are bacteria are classified accordi...

Q. How are bacteria are classified according to their need for oxygen? According to their need of oxygen bacteria are classified into anaerobic those that survive without oxyge

What do you mean by synapses, Q. What do you mean by synapses? Synapses...

Q. What do you mean by synapses? Synapses are the structures that transmit the neural impulse between two neurons. When the electric impulse arrives the presynaptic membrane

Define atherosclerosis, Q. Explain Atherosclerosis? Atherosclerosis is ...

Q. Explain Atherosclerosis? Atherosclerosis is one of the most important causes of morbidity and mortality in developed as well as in developing countries. Atherogenesis occurs

Show the anatomical evidence, Q. Show the Anatomical Evidence? Anatomy ...

Q. Show the Anatomical Evidence? Anatomy is the study of the structure, organisation and development of cells and tissues of plants and animals. For over a century taxonomists

Size of ecosystem, Size of Ecosystem As you know an ecosystem may be as...

Size of Ecosystem As you know an ecosystem may be as small and as simple as a cow dung pad or as complex and large as an ocean or the biosphere itself, comprising a wide variet

What is biochemical composition, What is Biochemical Composition As lif...

What is Biochemical Composition As life evolved on this planet, nature selected only a few elements, and life eventually came to be based essentially on carbon compounds. Out o

Do you know what the recommendations for fibre are, Do you know what the re...

Do you know what the recommendations for fibre are? Well, the crude fibre intake should be 14 g/1000 Kcal. For adult woman 25 g/day and for adult man 38 g/day is desirable.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd